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HAR File Viewer

Network

Parse a browser DevTools .har network export into a readable table of requests, status codes, timing, and sizes

Export a `.har` file from your browser's DevTools Network tab and drop it in here to browse every request as a sortable table of method, URL, status, content type, size, and timing, instead of scrolling through DevTools itself or a raw JSON dump. It's a fast way to filter down to the slow or failed requests in a large capture when you're trying to isolate what went wrong during a page load or an API session. The whole file is parsed and rendered locally in your browser; nothing you upload here is sent to a server, which matters since a HAR export can contain real request headers and cookies from a live session.

harnetworkdevtoolsrequestsviewer

How to use HAR File Viewer

  • 1.Export a .har file from your browser's DevTools Network tab, then drop it in to see every request as a sortable table with status, timing, and size.
  • 2.Filter the parsed requests to find slow or failed calls when debugging why a page felt sluggish during a user session.
  • 3.Inspect a specific request's method, status, timing, and size to help pin down what happened during a bug report handoff.

Frequently asked questions

Is my HAR file uploaded to a server?
No, parsing happens entirely in your browser — this matters because HAR files often contain cookies, auth tokens, and full request/response bodies, so keep that in mind before sharing one with anyone.
Does it work with HAR files from any browser?
Yes, HAR is a standard JSON-based format (HTTP Archive) supported by Chrome, Firefox, Safari, and Edge DevTools, all of which export compatible files.
Can I see response bodies, not just headers?
No, this tool only surfaces per-request metadata — method, URL, status, status text, HTTP version, MIME type, size, timing, and start time — plus summary stats like totals and status code breakdowns. It doesn't currently read or display response or request bodies from the HAR file, even when they're present in the export.
Can this replay the requests?
No, this tool is read-only for inspection — it doesn't re-send any of the captured requests.

Use via API, SDK, or MCP

cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/har-parse \
  -H "Authorization: Bearer utx_live_..." \
  -H "Content-Type: application/json" \
  -d '{"har": "{...HAR JSON contents...}"}'

Get an API key from your dashboard · Full API docs →

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